Worksheet on Symmetry for Class 4

Solved Questions on Symmetry

1. Choose an odd one out.

a) 
b) 
c) 
d) 

Answer: d) 

Explanation: These figures have one line of symmetry, shown as:

The figure has two lines of symmetry, shown as:

2. How many lines of symmetry does the square have?

a) No line of symmetry
b) Two lines of symmetry
c) Four lines of symmetry
d) Eight lines of symmetry

Answer: c) Four lines of symmetry

Explanation: A square has four lines of symmetry, shown as:

3. Which digit has no line of symmetry?

a) 
b) 
c) 
d) 

Answer: c)  

Explanation: There is one line of symmetry for digit 3 and two lines of symmetry for the digits 0 and 8, shown as:

Other digits such as 1, 2, 4, 5, 6, 7 and 9 have no line of symmetry.

4. Which letter of the following alphabet has no vertical line of symmetry?

a) 
b) 
c) 
d) 

Answer: d)  

Explanation: Alphabets Y, U and M have a vertical line of symmetry whereas alphabet K has no vertical line of symmetry, shown as:

The alphabet K has one horizontal line of symmetry.

5. Which of the following objects does NOT have an order of rotational symmetry 2?

a) 
b) 
c) 
d) 

Answer: b) 

Explanation: In option (a), the order of rotational symmetry of a rhombus-shaped biscuit is 2.
In option (b), the order of rotational symmetry of a square-shaped clock is 4.
In option (c), the order of rotational symmetry of a rectangle-shaped clock is 2.
In option (d), the order of rotational symmetry of a letter X-shaped board is 2.

Hence, the square does not have an order of rotational symmetry 2.